Generac Next Gen Automatic Transfer Switch 200 Amp
- 200 amp service rated
- Automatic, open transition switching
- Whole-home surge protection factory installed
- IP44 outdoor enclosure, UL listed
- 6.5 x 13.5 x 30 inches enclosure
- Switch only, no generator listed
Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A service rated automatic transfer switch for homes adding a standby generator, with surge protection already built in. Generator model compatibility is only loosely stated, so confirm the match with your installer.
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ASIN: B0GN4M7P64Model: 9951Category: Transfer Switches
Overview
Generac's automatic transfer switch moves a home from utility power to a standby generator during an outage, then back again when utility power returns. It is service rated, has whole-home surge protection installed at the factory and mounts outdoors.
Built-in surge protection saves adding a separate device at the panel, and the service rating lets it act as the main disconnect. A new mounting design aims at faster installs. The listing never names exact generator models it pairs with.
Who it's for
Homes on a large residential service adding a whole-house standby generator through a licensed installer. Owners of portable generators or smaller services will need a different switch.
Pros and cons
- Fully automatic switchover and return
- Surge protection included
- Service rated for main disconnect
- Outdoor rated enclosure
- Generator compatibility vaguely stated
- Open transition causes a brief outage
- Not a DIY install item
Performance notes
Open transition means the home drops off utility power before the generator connects, so there is a short gap during each transfer. The control module senses the outage and signals the switch. Surge protection guards circuits when power returns.
Specifications
| Brand | Generac |
|---|---|
| Model | 9951 |
| Dimensions & fit | |
| Product dimensions | 6.5 x 13.5 x 30 inches |
| Capacity & performance | |
| Upper Temperature Rating | 122 F |
| Construction & materials | |
| Material Type | Aluminum |
| Compatibility & installation | |
| Mounting Type | Wall mount, fast mount enclosure |
| Compatible Devices | 200 amp service rated standby generators |
| Included components | |
| Included Components | Transfer switch enclosure with SPD and control module, owner's manual |
| Other details | |
| Current Rating | 200 amp service rated |
| International Protection Rating | IP44 |
| Operation Mode | Automatic, open transition |
| Special Features | Factory installed whole-home surge protection, hardened fuse control module |
| Specification Met | UL |
Frequently asked questions
Does the Generac 9951 come with a generator?
No. Included items are the transfer switch enclosure with surge protection, the control module and an owner's manual.
Will the Generac 9951 restore utility power on its own?
Yes. It transfers to generator power during an outage and restores utility power when it becomes available.
Is the Generac 9951 a closed transition switch?
No. It uses open transition switching.